Chart 15
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Engine Noise (Under Hood)
NOTE:
Attempt to identify the source of the noise. If the noise is from a source other than those listed below, refer to the STEP 2: NO DIAGNOSTIC TROUBLE CODE (DTC) PRESENT SYMPTOM CHART INDEX
(for noise such as spark knock) or the applicable service information article
.
| SYSTEM/COMPONENT | REFERENCE (Pinpoint Test Unless Noted) |
|---|---|
| Snap noise that may be due to secondary ignition arcing: Secondary Ignition System |
CHECK the condition of the coil-on-plug (COP) spark plug boots. |